•
IP address
•
Subnet mask
•
Default gateway of the optional rear port Ethernet connector
7.4.2.8
Defining serial port settings
1.
Select
Configuration/Communication/COM1
or
COM2
.
2.
Define the settings for the serial port.
It is possible to change the general serial communication parameters per port.
Select fiber or galvanic mode with the proper baud rate.
7.4.2.9
Setting communication protocol parameters
1.
Select
Configuration/Communication/<protocol>
.
2.
Change the protocol specific settings.
Possible settings to be changed are, for example, the selected communication
port, address and link mode.
7.4.2.10
RS-485 bias and termination settings
A 6 x DIP switch is located on the bottom side of the COM1004...COM1005 boards.
RS-485 biasing and termination settings are possible through this switch. If the switch
is in “OFF” position, bias and termination are disabled and in “ON” position, they are
enabled.
Table 21:
Bias and termination DIP switch
Switch
Signal
X8 pin
Type
1
RS
8
Bias
2
RS
RS485_B1/-
Bus termination
3
RS485_B1/-
7
Bias
4
RS
10
Bias
5
RS
RS485_B2/-
Bus termination
6
RS485_B2/-
9
Bias
7.4.3
Connecting and setting the local HMI
7.4.3.1
Connecting local HMI directly to relay
•
Use a CAT 6 S/FTP cable to connect the LHMI to the protection relay.
•
Connect the cable to the X1.1/Main unit connector on the LHMI and to the X0/
HMI connector on the protection relay's communication module.
Section 7
1MRS759118 A
Commissioning
110
REX640
Operation Manual